186272249861 has 2 divisors, whose sum is σ = 186272249862. Its totient is φ = 186272249860.

The previous prime is 186272249827. The next prime is 186272249869. The reversal of 186272249861 is 168942272681.

186272249861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160075208836 + 26197041025 = 400094^2 + 161855^2 .

It is a cyclic number.

It is not a de Polignac number, because 186272249861 - 2⁶ = 186272249797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 186272249797 and 186272249806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (186272249869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93136124930 + 93136124931.

It is an arithmetic number, because the mean of its divisors is an integer number (93136124931).

Almost surely, 2^186272249861 is an apocalyptic number.

It is an amenable number.

186272249861 is a deficient number, since it is larger than the sum of its proper divisors (1).

186272249861 is an equidigital number, since it uses as much as digits as its factorization.

186272249861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4644864, while the sum is 56.

The spelling of 186272249861 in words is "one hundred eighty-six billion, two hundred seventy-two million, two hundred forty-nine thousand, eight hundred sixty-one".